3.6 Starting and Stopping Measurement
57
3
Chapter 3 Measurement Procedure
Measurement methods are normal measurement (start recording when measurement starts) and trigger
measurement (start recording when trigger criteria
are satisfied).In this manual, "Measurement start" means the instant when you press the
START key, and
"Recording start" means the instant when recording begins on the waveform screen.
• Select the Trigger mode to record upon either single or repeating trigger
events.( p.153)
• Enable pre-triggering if you want to capture data measured prior to trigger
events.( p.166)
When the trigger mode is set to [Repeat] or [Auto] (Memory function only), the
number of trigger events is shown in the top part of the screen (Storage Counter).
See: "Explanation of Screen Contents" ( p.13)
Measurement and Internal Operations
Start Measurement
START key
End of Measurement
Recording
Starts
Recording
Stops
[Now Storing]
[Storing Finished]
[ ]: Status Bar Display
Recording
Normal
Measurement
Without triggering
Terminates when recording length has been recorded.
End of Measurement
[Trigger Wait]
Recording
Starts
T
Recording
Stops
[Now Storing]
Recording starts when a trigger event occurs and continues for the specified recording
length.
Start Measurement
START key
[Storing Finished]
Recording
Trigger
Measurement
Trigger mode: [Single]
Pre-triggering not enabled
Single triggering
Recording starts when a trigger event occurs, continues for the specified recording length,
and returns to the Trigger Wait state.
Stop Measurement
STOP key
[Trigger Wait]
Recording
Starts
T
Recording
Stops
[Now Storing]
Start Measurement
START key
Recording
[Trigger Wait]
T
Recording
Starts
Repeated triggering
Trigger mode: [Repeat]
Pre-triggering not enabled
[Pre-Trigger Wait]
End of Measurement
[Trigger Wait]
Start Measurement
START key
T
Recording
Stops
[Now Storing]
After starting measurement and internally acquiring data for the specified
pre-trigger period, the Trigger Wait state is activated.
Recording
Starts
The specified pre-trigger wait period is recorded before each trigger event
The data before a trigger event (for the pre-trigger period) is recorded.
Recording
[Storing Finished]
T
Post-trigger waveform
Waveform dur-
ing specified pre-
trigger period
Repeated triggering and recording of phenomena before each event
Trigger mode: [Repeat]
Pre-triggering enabled
Operation is
repeated
from pre-trig-
gering stage.
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